IUIAutomationEventHandlerGroup::AddTextEditTextChangedEventHandler method

• 12/05/2018
• 2 minutes to read

Registers a method that handles programmatic text-edit events.

Syntax

HRESULT AddTextEditTextChangedEventHandler(
  TreeScope scope                              ,
  TextEditChangeType textEditChangeType        ,
  IUIAutomationCacheRequest                    *cacheRequest,
  IUIAutomationTextEditTextChangedEventHandler *handler
);

Parameters

arg1

The scope of events to be handled; that is, whether they are on the element itself, or on its ancestors and descendants.

arg2

The specific change type to listen for. Clients register for each text-edit change type separately, so that the UI Automation system can check for registered listeners at run-time and avoid raising events for particular text-edit changes when there are no listeners.

cacheRequest

A pointer to a cache request, or NULL if no caching is wanted.

handler

A pointer to the object that handles the programmatic text-edit event.

Return Value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

Before implementing an event handler, you should be familiar with the threading issues described in Understanding Threading Issues.

Requirements

See Also

IUIAutomationEventHandlerGroup